package com.fancy.mobileschool.ui.widget;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.support.annotation.Nullable;
import android.util.AttributeSet;
import android.util.Log;
import android.widget.ImageView;

/**
 * Created by Jackie on 2017/10/14.
 * 自定义圆形ImageView
 */

public class RoundImageView extends ImageView {


    public RoundImageView(Context context) {
        super(context);
    }

    public RoundImageView(Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
    }

    public RoundImageView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @Override
    protected void onDraw(Canvas canvas) {

        Drawable drawable = getDrawable();
        if (drawable == null) return;
        if (getWidth() == 0 || getHeight() == 0) return;
        if (!(drawable instanceof BitmapDrawable)) return;
        Bitmap bitmap = ((BitmapDrawable) drawable).getBitmap();
        if (bitmap == null) return;

        Bitmap map = bitmap.copy(Bitmap.Config.ARGB_8888, true);

        int w = getWidth();
        Log.w("draw", "issss");
        Bitmap roundBitmap = getCroppedBitmap(map, w);
        canvas.drawBitmap(roundBitmap, 0, 0, null);

    }

    public static Bitmap getCroppedBitmap(Bitmap bmp, int radius) {
        Bitmap sbmp;

        if (bmp.getWidth() != radius || bmp.getHeight() != radius)
            sbmp = Bitmap.createScaledBitmap(bmp, radius, radius, false);
        else
            sbmp = bmp;
        Bitmap output = Bitmap.createBitmap(sbmp.getWidth(), sbmp.getHeight(),
                Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(output);

        final Paint paint = new Paint();
        final Rect rect = new Rect(0, 0, sbmp.getWidth(), sbmp.getHeight());

        paint.setAntiAlias(true);
        paint.setFilterBitmap(true);
        paint.setDither(true);
        canvas.drawARGB(0, 0, 0, 0);
        paint.setColor(Color.parseColor("#BAB399"));
        canvas.drawCircle(sbmp.getWidth() / 2 + 0.7f,
                sbmp.getHeight() / 2 + 0.7f, sbmp.getWidth() / 2 + 0.1f, paint);

        paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
        canvas.drawBitmap(sbmp, rect, rect, paint);

        return output;
    }



}
